@misc{10481/85262,
year = {2023},
month = {6},
url = {https://hdl.handle.net/10481/85262},
abstract = {A primary goal of the upcoming Deep Underground Neutrino Experiment (DUNE) is to measure the Oo10 thorn MeV neutrinos produced by a Galactic core-collapse supernova if one should occur during the lifetime of the experiment. The liquid-argon-based detectors planned for DUNE are expected to be uniquely sensitive to the & nu;e component of the supernova flux, enabling a wide variety of physics and astrophysics measurements. A key requirement for a correct interpretation of these measurements is a good understanding of the energy-dependent total cross section & sigma;oE & nu; thorn for charged-current & nu;e absorption on argon. In the context of a simulated extraction of supernova & nu;e spectral parameters from a toy analysis, we investigate the impact of & sigma;oE & nu; thorn modeling uncertainties on DUNE's supernova neutrino physics sensitivity for the first time. We find that the currently large theoretical uncertainties on & sigma;oE & nu; thorn must be substantially reduced before the & nu;e flux parameters can be extracted reliably; in the absence of external constraints, a measurement of the integrated neutrino luminosity with less than 10% bias with DUNE requires & sigma;oE & nu; thorn to be known to about 5%. The neutrino spectral shape parameters can be known to better than 10% for a 20% uncertainty on the cross-section scale, although they will be sensitive to uncertainties on the shape of & sigma;oE & nu; thorn . A direct measurement of low-energy & nu;e-argon scattering would be invaluable for improving the theoretical precision to the needed level.},
organization = {CERN},
organization = {ERDF, H2020-EU},
organization = {MSCA, European
Union},
organization = {CAM, Spain},
organization = {La Caixa Foundation},
organization = {Junta de Andalucia-FEDER, Spain},
organization = {Spanish Government},
organization = {Xunta de Galicia},
organization = {MICINN, Spain},
organization = {FAPESB T. O. PIE0013/2016},
organization = {UESC/PROPP 0010299-61},
publisher = {American Physical Society},
title = {Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment},
doi = {10.1103/PhysRevD.107.112012},
author = {Abud, A. Abed and Bravo-Moreno, M. and García Gámez, Diego and Nicolás Arnaldos, Francisco Javier and Sánchez Lucas, Patricia and Zamorano García, Bruno and Dune Collaboration},
}